caa a22 4500 388060220 CHVBK 20180307125118.0 cr unu---uuuuu 161130e199812 xx s 000 0 eng 10.1017/S1357729800033002 doi S1357729800033002 pii (NATIONALLICENCE)cambridge-10.1017/S1357729800033002 A comparison of voluntary intake and in vivo digestion in guanacos (Lama guanicoe) and sheep given fresh grass [Elektronische Daten] An experiment was conducted to compare the voluntary intake and in vivo digestion for guanacos and sheep when offered perennial ryegrass at three different growth stages: vegetative growth (VG), emerging inflorescence (El) and mature inflorescence (MI). Dry-matter (DM) intake ranged from 1·19 to 2·12 kg/day for the guanacos and 0·79 to 1·52 kg/day for the sheep. When expressed on a metabolic live-weight (M0·75) basis, the intake of the guanacos (55·8, 43·1 and 44·1 g DM per kg M0·75 daily on the VG, El and MI grasses respectively) and the sheep (54·4, 45·7 and 47·4g DM per kg M0·75 daily respectively) were similar (s.e.d. = 3·70). Apparent digestibilities of all food constituents were also similar. In terms of food choice, the response of the two species to grass stem differed; the guanacos selected (El) or tolerated (MI) this fraction, while the sheep tolerated (El) or avoided (MI) it. Copyright © British Society of Animal Science 1998 camelidae nationallicence digestibility nationallicence food preferences nationallicence Lolium nationallicence sheep nationallicence Fraser M. D. Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth SY23 3EB Baker D. H. Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth SY23 3EB Animal Science Cambridge University Press 67/3(1998-12), 567-572 1357-7298 67:3<567 1998 67 ASC https://doi.org/10.1017/S1357729800033002 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S1357729800033002 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fraser M. D. Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth SY23 3EB NATIONALLICENCE 700 1- Baker D. H. Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth SY23 3EB NATIONALLICENCE 773 0- Animal Science Cambridge University Press 67/3(1998-12), 567-572 1357-7298 67:3<567 1998 67 ASC CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge